Neuphonic

Neuphonic is a text-to-speech provider you can use for your voice agent’s voice. Connect Neuphonic to use its voices on a Vapi assistant. This page covers what Neuphonic is and how to select a voice.

What is Neuphonic

Neuphonic is a text-to-speech provider that generates the spoken audio for a voice agent. On Vapi, you select a Neuphonic voice for an assistant.

You can use Neuphonic through Vapi’s default integration, or use your own Neuphonic account by connecting it in Integrations.

Text-to-speech

Set voice.provider to neuphonic and voice.voiceId to a Neuphonic voice. Neuphonic offers many voices, you can browse and copy a voice’s ID from the Voice Library.

$
curl -X PATCH "https://api.vapi.ai/assistant/ASSISTANT_ID" \
>
  -H "Authorization: Bearer $VAPI_API_KEY" \
>
  -H "Content-Type: application/json" \
>
  -d '{
>
    "voice": { "provider": "neuphonic", "voiceId": "VOICE_ID" }
>
  }'

For additional API configuration options, review the NeuphonicVoice fields in the Create Assistant API reference.

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